JIS Sheet Stainless Steel 201 Sheet Stainless Steel Plate

JIS Sheet Stainless Steel 201 Sheet Stainless Steel Plate

JIS Sheet Stainless Steel 201 Sheet Stainless Steel Plate Type 201 Stainless Steel is an austenitic chromium-nickel-manganese stainless steel which was developed to conserve nickel. Type 201 is a lower cost alternative to conventional Cr-Ni stainless steels such as 301 and 304. Nickel is...
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JIS Sheet Stainless Steel 201 Sheet Stainless Steel Plate

Type 201 Stainless Steel is an austenitic chromium-nickel-manganese stainless steel which was developed to conserve nickel. Type 201 is a lower cost alternative to conventional Cr-Ni stainless steels such as 301 and 304. Nickel is replaced by additions of manganese and nitrogen. It is non-hardenable by thermal treatment, but may be cold worked to high tensile strengths. Type 201 is essentially nonmagnetic in the annealed condition and becomes magnetic when cold worked. Type 201 can be substituted for Type 301 in many applications.

 

PRODUCT FORMS:

Sheet, Strip

 

SPECIFICATIONS:

ASTM A240, A666

 

TYPICAL APPLICATIONS:

Typical applications for Types 201 are cookware, hose clamps, piston rings, transit car structural member, transit car roofing/siding, thermal window spacers, air bag containers, and truck trailer posts and door frames.

 

CHEMICAL COMPOSITION:

Element

Type 201

Carbon

0.15x

Manganese

5.5 – 7.5

Sulfur

0.03X

Phosphorus

0.060x

Silicon

1.0 x

Chromium

16 – 18

Nickel

3.5 -5.5

Nitrogen

0.25x

 

MECHANICAL PROPERTIES:

Type

Yield Strength 0.2% offset (KSI)

Tensile Strength (KSI)

% Elongation
(2″ Gauge length)

201 Ann

38 min.

75 min.

40% min.

201 ¼ Hard

75 min.

125 min.

25.0 min.

201 ½ Hard

110 min.

150 min.

18.0 min.

201 ¾ Hard

135 min.

175 min.

12.0 min.

201 Full Hard

145 min.

185 min.

9.0 min.


PHYSICAL PROPERTIES:

Density (lb./ in^2) @ RT


0.283

Modulus of Elasticity in Tension (psi x 10^6)


28.6

Specific Heat (BTU/o F/lb.)

32 to 212 oF

0.12

Thermal Conductivity (BTU/hr/ft^2/ft)

212oF

9.4

Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F)

32 to 212oF

8.7


32 to 600oF

9.7


32 to 1,000oF

10.2

Electrical Resistivity (micro ohms – cm)

at 70oF

69

Melting Point Range (oF)


2550/2650

Oxidation Resistance – Continuous Service(oF)


1550

Oxidation Resistance – Intermittent Service(oF)


1500

 

PROCESSING:

The annealing temperature for Type 201 is between 1850-2000°F. Rapid cooling through the carbide precipitation range (1500 – 800 o F) is necessary to keep the carbides in solution and prevent sensitization. Type 201 is not hardenable by thermal treatment; it is only hardenable by cold working.

 

FORMING:

Type 201 has similar bending, forming and drawing characteristics to Type 301 stainless steel

 

WELDING:

Type 201 can be welded by all conventional methods applied to 18 percent chromium, 8 percent nickel steels. Filler metal of the conventional chromium-nickel analyses can be used. Like other austenitic stainless steels where carbon is not controlled below 0.03%, Type 201 is susceptible to intergranular corrosion in the weld heat affected zone.

 

CORROSION:

Type 201 is resistant to a wide variety of mild to moderately corrosive environments. It has corrosion resistance approaching that of Types 301and has been successfully substituted for 304 in many mild environments.


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